Eheim bioMECH Mechanical-Biological Filter Media 2L (2508751)

Eheim bioMECH is a cleverly designed mechanical-biological filter medium for combined water treatment. Unlike conventional filter media that perform only mechanical or biological filtration separately, bioMECH's dirt-trapping pockets capture and retain large and small dirt particles, while at the same time the subtly designed pore structure provides colonisation for the purification bacteria — ensuring reliable biological decomposition.

The result is a single filter media that delivers two stages of water purification simultaneously — making it an exceptional choice for aquariums where filter space is limited, or for hobbyists who want to maximise the efficiency of every centimetre of their filter basket.

The material is pH-neutral and does not contain water hardeners. Eheim bioMECH is suitable for fresh and marine water, and is washable and reusable many times.

Key Features

• Dual mechanical and biological filtration: Dirt-trapping pockets capture coarse and fine particles mechanically, while the optimised pore structure simultaneously supports biological decomposition by beneficial bacteria
• Ideal for space-restricted filter setups: Combines two filtration stages in one media — ideal for smaller filters, heavily stocked tanks, or aquariums needing maximum filtration efficiency
• pH-neutral: Does not contain water hardeners — will not affect water chemistry or pH
• Reusable multiple times: Washable — rinse carefully to preserve bacterial cultures rather than destroying them completely
• Suitable for freshwater and marine aquariums: Compatible with all aquarium water types
• Manufactured by Eheim: Produced in-house to Eheim's quality standards
• 2L pack: Weight 1360g — suitable for medium to large external canister filters and sumps

Compatibility

• Suitable for: All Eheim external canister filters, sumps, and compatible internal filters
• Recommended placement: Lower filter basket — as a premium alternative to Eheim Mech, allowing the mechanical filter area to simultaneously have a biological effect
• Water type: Freshwater and marine aquariums
• Pack size: 2 litres / 1360g

Product Details

• Brand: Eheim
• Product Code: 2508751
• Type: Mechanical-Biological Filter Media
• Volume: 2L
• Weight: 1360g
• pH: Neutral
• Reusable: Yes
• Suitable For: Freshwater and marine aquariums

Maintenance tip: Rinse carefully in old aquarium water during maintenance so that the bacterial cultures are not completely destroyed. Never clean in tap water or with detergents.

The Eheim bioMECH 2L is ideal for aquarium keepers who want a single premium filter media that delivers both mechanical trapping and biological decomposition simultaneously — reducing maintenance complexity while improving overall water quality.